Method of making shipping drums



NOV. 13, 1934. E E SH NQ 5 AL 1,980,960

METHOD OF MAKING 'SHIPPING DRUMS Filed March 22, 1929 2 Sheets-Sheet 1Nov. 13, 1934. E. E. SHANOR rs-r AL METHOD OF MAKING SHIPPING DRUMSFiled March 22, 1929 2Sheets-Sheet 2 f A. f ci/yw/var,

. Patented Nov. 13; 1934 UNITED STATES PATENT OFFICE METHOD OF MAKINGSHIPPING DRUMS Edgar E. Shanor and Carl W. Murder-stock, Sharon, Pa.,assignors to The Petroleum Iron ggirks Company, Sharon, Pa, acorporation of Application March 22, 1929, Serial No. 349,177

1 Claim.

'Ihe invention relates to drums mainly intended for the storage andshipment of Vaseline and other greases and of the type in which thegrease is poured hot into the drum through an opening in the head and isremoved when required in a more or less solid or jelly form bydetachment of the head.

Objcts of the invention are to provide for app ying both permanent andremovable heads simultaneously thereby saving the cost of independentheading operations; to provide a removable head which will stand abuseand rough handling about as well as the double seamed bottom; to providea removable head which will leave an opening the full diameter of thedrum or shell; to provide a head capable of ready removal underauthorized circumstances and which can be used over and over again andwhich will serve as a tell-tale of tampering or unauthor ized attemptsat removal; and to provide a drum or shell definitely reinforced orstrengthened in consonance with the improved head.

With such and other objects in view, the nature, characteristic featuresand scope of the invention will more readily be understood from thefollowing description taken in connection with the accompanyingdrawings, forming a part hereof, wherein Figure 1 is asectional-elevations! view of the improved drum.

Fig. 2 is a top view- Fig. 3 is a sectional detail, showing the relationof the parts with the head in place, but before the application ofpressure to flatten the gasket and complete the sealing.

Fig. 4 is a similar view with the parts in sealed relation.

Fig. 5 is a sectional detail of the lipped periphery of the head.

Fig. 6 is a section on line 6--6 of Fig. 5.

According to the present improvements the drum body or shell 5 may havethe double seamed bottom head or closure 8 and strengthening beads '17,as usual. Departing from the usual practice, there is provided at thetop of the drum an additional external bead 8, which not. only insuresgreater strength, but also cooperates in the seating and sealing of theimproved head 9. It will be observed that the beaded top of the drumdoes not infringe upon the confines thereof so that when the head 9 isremoved it leaves an opening the full diameter of the drum.

Head 9 has the usual plugged filling opening 10 and comprises a dishsection 11 for telescopic fit in the beaded end of the drum and amarginal rim or flange 12 to be secured externally of said end. The dishsection 11 is formed in proximi y with its riser with a raised rib orbead 13 to impart rigidity and strength.

The marginal lip or flange 12 is recessed at spaced intervals, as at 14,to provide resilient tongues 15, the arrangement being such that thereis no severance of metal beyond the limits of the beaded end of the drumsuch as would militate against the eventual proper sealing thereof.Otherwise stated the recesses 13 stop short of the top of the drum, theend of which is rolled or curled as at 16. A gasket 17 introducedbetween the rolled end 16 and the marginal lip of the head 9 completesthe assembly.

It will be apparent to those skilled in the art that with the describedconstruction and arrangement of parts, the open head problem issimplified and fluid tight heading of both ends of the drum can beeilected at one operation. Under such operation, which might be with theconventional double seaming rolls, the bottom head is affixed in theusual or under any approved practice, and double seaming rolls areavailed of to bend the tongues 15 against the upper flare of theterminal stiffening rib. It may here be remarked that said upper flareis not only useful in the heading operation, but that it alsofacilitates the use of a special tool for lifting the tongues in theauthorized removal of the head. Before the tongue bending operation, thegasket 1! having been introduced between the rolled margin of the drumand the head, is subjected to pressure, such as pressure applied betweenthe chuck of the machine and the head, for the purpose and with theresult of altering its cross-section from that indicated in Fig. 3 tosubstantially that indicated in Fig. 4, or in short to put it incondition for vacuum sealing.

Having described our invention, we claim:

Method of inserting concurrently the permanent and removable heads of adrum, which consists in providing a drum body having a series ofstifiening ribs whereof one is a terminal rib which is ofl'set from thebody and constitutes an abutment fora. metal working operation,providing permanent and removable heads for the body, the removable headhaving a stiffening rib to resist excess flexure when acted upon byheading instrumentalities and having a sealing rim with spaced lugs,double seaming the permanent head to the body, and concurrently forcingthe spaced lugs of the sealing rim into engaging relation with theabutment.

EDGAR E. SHANOR. CARL W. MARDERSTECK.

